500 Internal Server Error (piwik 0.4.2) on OVH hosted server


I just installed the last 0.4.2 piwik on my website.
I can’t start it and I directly received a 500 Internal Server Error.
I tried to change the folder and subfolders (chmod) properties like they explained on my hosting server manager :

But there is so many subfolders I can’t find all of them and also change the value or script files php/cgi… too long

How can I solve it ?!

Sincerely thanks and have a nice day,

Miguipda :wink:

If you have shell access, you can use the ‘recursive’ flag with ‘chmod’, e.g.,

chmod -R 755 piwik